Piper COMANCHE PA-24-180 Service Manual page 156

PIPER COMANCHE SERVICE MANUAL
5-20. Flap Controls. (PA-2400 .)
5-21. Removal Of Flap Comol. (PA-24-400.) (Refer ro Figure 5-5.)
L
Acces for removal of the flap actuating mechanism and flap control cables within the fuselage
may be reached by removing rear set and bagage comparment floor pnel Acces to conrols in the wing
may be reached by removing wheel wel splash pan and aces plate to the flap bellcrank
b. Remove the flap transmission assembly by disconnecting the motor decrical leads extracting pin
(16) at the mranmision housing and removing bolt (23) at the forward secion of the actuating screw.
c. The acTuaing arms (15) are removed by disconnecting the flap pusb-pull control cables dclevis, he
step lock release cable on the right arm, and the flap position sender rod. Remove the pivot bolt at the top
spar support tube and the flap guide bracket.
d. To remove the flap push-pull control cable (5) remove the levis ed nd a locknut from actuator
end of the cable. Disconnect the support clamps and draw the cable from its support cube. Within the wing,
disconnect and remove the devis end at the flap bellcrank. Enter through the wheel well and remove the
support rube locknut Draw the cable from the wing into the fuselge.
e.
Disconnect the flap control rod and remove the bolt securing the belcrank.
f. Removal of the step lock mechanism(44)and support cable (27 , disconnect the return spring (43)
at the inboard side of the wheel wel. Remove the aft wing fairing, the access plate located at the inboard,
under side of the flap and back the adjusting nut (45) off the cable end. Unbolt the mechanism from the
inboard and aft sides of the wing and remove with step lock and suppon cable.
5-22. Insalation Of Flap Control. (PA-2-400.) (Refer to Figure 5-5.)
a
To inmll the flap acuatng mechanism assembly, connect the conrol arms (14 and 15) to the
upper spar support tube and inser the pivot bolt. Tighten the bolt to a mug fit with no binding of the
ums. Instll the flap guide bracket and connect the flap posiion sender rod (12) to the control arms.
b. The actuating motor and ransmission may be insalled as a unit. Place the ransmission end
between the two brackes leading from the spar support. inser locking pin and safery. Connect the
actuating screw(22) to the lower portion of the actuaing arms, inser bolt (23) and secure. Connect the
electrical leads to the motor, referring to the electrical diagnm in Section iX. Operate the motor to assure
proper electrical hookup.
c. The flap bellcrank (6) may be insalled by placing into position, installing the pivot bolt securing
the bellcrank and tighten to a snug fit Install the flap control rod(33).
d. The flap push-pull control cable may be installed by drawing the cable from the fuselage into the
wing. Place the cable end through the support cube, locknut and to the flap bellcrank. Install the cable end
and connect to the bellcrnk. Secure and safety the locknut at the support tube. Within the fuselage, insert
the cable through the support cube and locknut, secure and safety.
e. To install the step lock mechanism(44)and return cable (27) in the right wing, enter through the
wheel well and iqstall the lock mechanism with the return cable wrapped around the pulley and secured.
Insert the cable end to the flap, through the trailing edge of the wing and into the flap. Start the adjustng
nut (45) a few threads onto the cable end. Draw the tension spring in place at the inboard side of the wheel
well Attach the step lock release cable to the lock release and ro the control arms within the fuselage.
Install cable pulley and secure.
f.
Rig and adjust per Paagraph 5-23 and reinstall access panels. wheel well splash pan, rear sear. etc.
SURFACE CONTROLS
ISSUED: 8/1/72
1G12